Inventions What plaything was invented by Joe McVicker in 1956? Silly Putty Etch-A-Sketch Play-Doh Lite-Brite Silly Putty Etch-A-Sketch Play-Doh Lite-Brite ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? Hargobind Khorana Benjamin Franklin J.J. Thompson Meghnad Saha Hargobind Khorana Benjamin Franklin J.J. Thompson Meghnad Saha ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Jet propulsion Sonar Radar Ethyl gasoline Jet propulsion Sonar Radar Ethyl gasoline ANSWER DOWNLOAD EXAMIANS APP
Inventions For what is Charles Babbage (1792-1871) remembered? Telescopes Computers Steam Boating Radio-Telegraphy Telescopes Computers Steam Boating Radio-Telegraphy ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Amanda Jones Marjorie Joyner Mary Kies Margaret Knight Amanda Jones Marjorie Joyner Mary Kies Margaret Knight ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1960s 1980s 1950s 1940s 1960s 1980s 1950s 1940s ANSWER DOWNLOAD EXAMIANS APP
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